Improvement in skylights



J. HENRY.

SKYLIGHT.

Patented May16,18'77.

WITNESSES ATTORNEYS.

N-PETERQ PHOTOUTHDGRAPNFJL WAQHING'TON, D C.

UNITED STATES PATENT OFFICE.

JOSEPH HENRY, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN SKVLIGHTS.

Specification forming part of Letters Patent No. 190,856, dated May 15,1877; application filed April 17, 1877.

To all whom it may concern Be it known that I, J OSEPH HENRY, ofChicago, in the county of Cook and State of Illinois, have invented anew and useful Improvement in Skylights; and I do hereby declare thatthe following is a full, clear, and exact description of the same.

My invention relates to a new construction of bars for supporting andsecuring the glass plates of a skylight, and is more particularly animprovement upon the bar for which I have received Letters Patent datedMarch 27, 1877, and reference is made to the latter to facilitate fullunderstanding of this invention.

In the accompanying drawing, forming part of this specification, Figure1 is a cross-section of my improved bar. Fig. 2 is a modification. Fig.3 is a side view, part being broken away to show the construction andarrangement of parts. Fig. 4 is a cross-section of a double gutter-jointor cross-bar.

The bar A has approximately the form (in cross-section) of the ordinaryIcar-rail. It consists of gutter-beds a, the body or central verticalpart b, and the glass-supporting portion 0. As shown in Fig. 1, the heador top 0 of the bar is flat, and formed in one piece with the body 12and gutters a, the latter being connected by a clasp or tie-piece, dbut, as shown in Fig. 2, the head or top a is made separate from theremaining parts b a, which are made in one piece, and the clasp d isdispensed with.

When head 0 is made separate and detachable from the body I) aprojection may be formed in the middle to receive the upper end of partb. The edges of the glass panes or plates c rest upon the flat top a ofthe bar, and a cap, D, is employed to cover the joint. The bar and capare firmly united by means of screw-bolts E, which pass through the capand the head 0 of the bar, and have flattened shanks g and shoulders h,whereby they are adapted to enter between the sides of the body b, andto support the flat top of the head 0. The flat shanks of the bolts aresecured to the bar A by means of cross-bolts or rivets, and thedetachable head 0, Fig. 2, of the bar is (in practice) likewise securedby the same device. F is a double gutter-joint, designed to serve as across-bar and auxiliary to the rafter or main bar A. It is formed of asingle plate of sheet metal. The guttersl l lie under the adjacent edgesof the glass panes m m, and the top flange 1 passes between them, and isbent or turned down upon one of said panes. The panes are thussupported, and all leakage prevented, the water which passes through thejoint being collected in one or the other of the gutters l l, andconducted into one of the gutters a of the main bar or rafter A.

I am aware a single gutter-joint has been devised, and do not claim suchdevice.

What I claim is 1. The combination, with the heads of the skylight baror rafter A-said heads being formed in one pieceof the bolts E havingthe shoulders h, all arranged as shown and described, whereby the latterabut the under side of the flat top of the heads, and support the samein the manner described.

2. The double gutter-joint, formed of a single plate of sheet metal,having the two gutters 1 land bent-top flange n, as shown and described.

JOSEPH HENRY. Witnesses:

A. B. J AOKSON, D. 0. HERMAN.

